Fix bug on arm64.

runtime/vm/intermediate_language_arm64.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/dart_entry.h"
@@ skipping 151 matching lines @@
   }
 
   __ cset(result, true_condition);
 
   if (is_power_of_two_kind) {
     const intptr_t shift =
         Utils::ShiftForPowerOfTwo(Utils::Maximum(true_value, false_value));
     __ Lsl(result, result, shift + kSmiTagSize);
   } else {
     __ sub(result, result, Operand(1));
-    const int32_t val =
+    const int64_t val =
         Smi::RawValue(true_value) - Smi::RawValue(false_value);
     __ AndImmediate(result, result, val, PP);
     if (false_value != 0) {
       __ AddImmediate(result, result, Smi::RawValue(false_value), PP);
     }
   }
 }
 
 
 LocationSummary* ClosureCallInstr::MakeLocationSummary(bool opt) const {
@@ skipping 357 matching lines @@
   return locs;
 }
 
 
 Condition TestSmiInstr::EmitComparisonCode(FlowGraphCompiler* compiler,
                                            BranchLabels labels) {
   Register left = locs()->in(0).reg();
   Location right = locs()->in(1);
   if (right.IsConstant()) {
     ASSERT(right.constant().IsSmi());
-    const int32_t imm =
+    const int64_t imm =
         reinterpret_cast<int64_t>(right.constant().raw());
     __ TestImmediate(left, imm, PP);
   } else {
     __ tst(left, Operand(right.reg()));
   }
   Condition true_condition = (kind() == Token::kNE) ? NE : EQ;
   return true_condition;
 }
 
 
@@ skipping 3872 matching lines @@
   compiler->GenerateCall(token_pos(),
                          &label,
                          PcDescriptors::kOther,
                          locs());
   __ Drop(ArgumentCount());  // Discard arguments.
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64